Yeah, I'm the same, mornings are the best for me, I can almost get some peace luckily.Some days are less noticeable than others though, but it's always there more or less. I prefer mornings... seems like the reactivity is more weaker then. I try not to monitor the reactivity as much anymore to be honest. Better off this way personally speaking.
And yes, if the reactivity faded, I'd actually consider myself cured and I say that as someone who also has trouble masking their baseline tinnitus as well.
And yes, it's hard to mask when it's reacting to sounds, huh. Being outside is the closest thing to masking for me.